Impact of depth seed placement of Amaranthus spp. in the soil to their dormancy and germination

Tsveta Moskova, Maya Dimitrova, Dochka Dimova

Abstract: It was tested the impact of depth seed placement to the dormancy and germination of Amaranthus retroflexus L. and Amaranthus hybridus L. seeds. Field germination, laboratory germination and the number of germinated seeds were tested after treatment with growth regulator based on Omami method. It has been found that Amaranthus spp. dormancy of both species does not break and germination is not reported in soil depth – 2.5 cm, 5 cm, 10 cm, 20 cm and 30 cm. They keep dormancy which is precondition for weed infestation with that species. Compared with common, the hybrid has higher laboratory germination. It was statisticaly demonstrated that the depth of seed placement 20 – 30 cm compared with 2.5 – 5 cm, the laboratory germination ranges are from 32.4% to 43.8%.

Keywords: Amaranthus; dormancy; germination

Date published: 2017-07-26